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maemo.org - Talk (https://talk.maemo.org/index.php)
-   Nokia N9 / N950 (https://talk.maemo.org/forumdisplay.php?f=51)
-   -   Nokia N9 Screen Troubles (someone help me out confirm this) (https://talk.maemo.org/showthread.php?t=78488)

jalyst 2011-10-26 20:52
Re: Nokia N9 Screen Troubles (someone help me out confirm this)
 
Quote:
Originally Posted by benny1967 (Post 1114211)
I do see a purple tint on the left side - but always, not only at max brightness.
Also, the disturbung lines I'm talking about (and that you can see on my video) seem to be more visible when the screen is darker - and less when it's set to max brightness.
I asked jakiman to add his thoughts a while back but he missed my post. will try again now...

benny1967 2011-10-26 21:31
Re: Nokia N9 Screen Troubles (someone help me out confirm this)
 
Quote:
Originally Posted by DeeGee (Post 1112032)
Here's a oh, so wonderfull paint illustration... :D
http://bayimg.com/FaKLLaadj
It's really hard to get proper photos of it, because it's not that bad, and when trying to get photos you actually need to make them bit blurry or the lines disappear into the moire noise.
http://image.bayimg.com/fakllaadj.jpg
DeeGee was so kind to also post this in Konttori's blog; Konttori's comment was:

Quote:
Oh, crap, now I looked at you photo. No, that should not be happening to my knowledge. I'll take a look tomorrow on your example case on both displays we are shipping with (we had plenty of versions of the displays during the making on N9, some times to the better, some times to the worse)

blackbox 2011-10-26 21:38
Re: Nokia N9 Screen Troubles (someone help me out confirm this)
 
Quote:
Originally Posted by benny1967 (Post 1114238)
DeeGee was so kind to also post this in Konttori's blog; Konttori's comment was:
I hope this is just something simple to fix and not a screen defect! would hate to return the n9 now. :eek:

jakiman 2011-10-26 23:36
Re: Nokia N9 Screen Troubles (someone help me out confirm this)
 
Okay, here are my observations so far on my "normal" N9:

1. Pink/Green white edges

Yes, there are very thin line of pink/purple/green tint to left and/or right side on white objects or writing. Sometimes more visible, sometimes less. This is due to having pentile matrix and it's normal. (e.g. white text in black background or black text in white background won't have clean sharp edges but will have a tint of green/ping/purple.)

** The same symptom exists on my Omnia 7 which has a pentile matrix SAMOLED. This is something that cannot be avoided I believe.

2. Bleeding Purple Lines

I also do see faint purple bleeding across the white parts of the screen beginning from the black text when scrolling through web pages etc. (especially when scrolling horizontally, the purple lines dance around and change in thickness)

** This symptom does not exist on my Omnia 7 even at the lowest brightness setting. I tried VERY hard to try and see it but couldn't.

So yeah, my N9 is also affected by Symptom #2. It would be interesting to see what Konttori comes back with or what Nokia says about this. I can see how this can get annoying to some people. Now you got me seeing it also. =P

ZerionSeven 2011-10-27 09:53
Re: Nokia N9 Screen Troubles (someone help me out confirm this)
 
I put up a page here to show the problem at the repair shop. If you put your device into landscape and zoom so the chessboard pattern fills the bottom of the screen and the top is white, the lines are very noticeable.

Since I first noticed the lines, I've now started noticing them everywhere, where there's something dark next to something light. Even just opening the vkbd in apps with white background in landscape view I see the lines fill the area above the vkbd.

jalyst 2011-10-27 17:45
Re: Nokia N9 Screen Troubles (someone help me out confirm this)
 
Quote:
Originally Posted by jakiman (Post 1114300)
Okay, here are my observations so far on my "normal" N9:

1. Pink/Green white edges

Yes, there are very thin line of pink/purple/green tint to left and/or right side on white objects or writing. Sometimes more visible, sometimes less. This is due to having pentile matrix and it's normal. (e.g. white text in black background or black text in white background won't have clean sharp edges but will have a tint of green/ping/purple.)

** The same symptom exists on my Omnia 7 which has a pentile matrix SAMOLED. This is something that cannot be avoided I believe.

2. Bleeding Purple Lines

I also do see faint purple bleeding across the white parts of the screen beginning from the black text when scrolling through web pages etc. (especially when scrolling horizontally, the purple lines dance around and change in thickness)

** This symptom does not exist on my Omnia 7 even at the lowest brightness setting. I tried VERY hard to try and see it but couldn't.

So yeah, my N9 is also affected by Symptom #2. It would be interesting to see what Konttori comes back with or what Nokia says about this. I can see how this can get annoying to some people. Now you got me seeing it also. =P
Thanks for the input jakiman....
I hope issue 2 really just a fw/sw thing as konttori seems to think.
It would be disappointing of it's just a limitation of the panel used.

konttori 2011-10-27 19:01
Re: Nokia N9 Screen Troubles (someone help me out confirm this)
 
Quote:
Originally Posted by ZerionSeven (Post 1114468)
I put up a page here to show the problem at the repair shop. If you put your device into landscape and zoom so the chessboard pattern fills the bottom of the screen and the top is white, the lines are very noticeable.

Since I first noticed the lines, I've now started noticing them everywhere, where there's something dark next to something light. Even just opening the vkbd in apps with white background in landscape view I see the lines fill the area above the vkbd.
Cool link, thanks. I checked it with Samsung display and the effect can indeed be seen. I'll check with LG tomorrow (don't have one at home) to see if there is a difference. But I fear this is just simply an issue in OLED displays of this generation.

Oled is still in it's baby steps and this kind of issues are not totally surprising.

jalyst 2011-10-27 19:23
Re: Nokia N9 Screen Troubles (someone help me out confirm this)
 
Thanks konttori, please note jakiman's post #54....

AFAIK despite being marketed as an AMOLED CBD, the N9 is a SAMOLED (pentile) + Nokia twks.
And yet jakiman's Samsung Omnia 7 (SAMOLED pentile) doesn't have the 2nd issue listed in his post?

benny1967 2011-10-27 20:45
Re: Nokia N9 Screen Troubles (someone help me out confirm this)
 
Also, some N9s do have this issue while others don't...

DeeGee 2011-10-27 21:34
Re: Nokia N9 Screen Troubles (someone help me out confirm this)
 
Soo... Any way to differentiate N9's manufactured with LG display vs Samsung ones? :D
(if the LG ones don't have this pink bleeding)


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